4640139912 has 32 divisors (see below), whose sum is σ = 11603126880. Its totient is φ = 1546343040.

The previous prime is 4640139871. The next prime is 4640139937. The reversal of 4640139912 is 2199310464.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90612 + ... + 132252.

It is an arithmetic number, because the mean of its divisors is an integer number (362597715).

Almost surely, 2^4640139912 is an apocalyptic number.

It is an amenable number.

4640139912 is an abundant number, since it is smaller than the sum of its proper divisors (6962986968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4640139912 is a wasteful number, since it uses less digits than its factorization.

4640139912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46293 (or 46289 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 4640139912 is about 68118.5724454058. The cubic root of 4640139912 is about 1667.9269473265.

The spelling of 4640139912 in words is "four billion, six hundred forty million, one hundred thirty-nine thousand, nine hundred twelve".